Spire Global Inc. (NYSE: SPIR) announced it has successfully demonstrated single-satellite radio frequency geolocation capability on orbit, including detection and geolocation of S-band and X-band radio frequency signals.

The satellite-based technology represents a departure from traditional RF geolocation methods that require multiple satellites operating together to determine signal origins. Spire's approach uses sensors onboard a single satellite to identify and geolocate higher-frequency emitters.

The satellite launched in late 2025 aboard SpaceX's Bandwagon-4 mission. The project received co-funding from the Government of Luxembourg through an ESA contract in the Luxembourg National Space Programme, LuxIMPULSE, managed by the Luxembourg Space Agency.

"Understanding activity across the radio frequency spectrum is increasingly critical for modern defense and security operations," said Theresa Condor, Chief Executive Officer of Spire Global. "By successfully detecting and geolocating higher-frequency emitters such as S- and X-band signals — commonly used by radar and sensing systems critical to defense and national security missions — and demonstrating single-satellite RF geolocation, we are strengthening Spire's ability to deliver RF intelligence supporting defense and national security missions worldwide."

Spire's RF geolocation capabilities now span multiple bands across the RF spectrum, including VHF, UHF, GNSS L-band, S-band, and X-band. The system provides emitter latitude and longitude locations along with associated signal characteristics.

The Vienna, Virginia-based company operates a satellite constellation that observes Earth using radio frequency technology, providing data for weather intelligence, ship and plane movements, and spoofing and jamming detection.